Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. An olive green, glasslike substance formed from the sand melted by the heat that was generated by the first nuclear blast at the New Mexico test site in 1945.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The glassy residue left on the desert floor after the Trinity nuclear bomb test of 1945.

Etymologies

After the Trinity Site in New Mexico, after Trinity, code name for the first atomic bomb test.
(American Heritage® Dictionary of the English Language, Fourth Edition)
Trinity +‎ -ite (Wiktionary)

Examples

  • Though it's not harmful (all the radiation is long gone), eBay won't let people sell it if they call it trinitite, but it goes through the filters if sellers call it "Atomite."

    I hope this doesn't mean I've become a meme junkie...

  • Even the album cover, a photo of a sculpture by Dario Robleto, has been singled out; the sculpture of a decimated cassette tape is made of bones, bone dust and trinitite, which is glass produced during an atomic test explosion in 1945.

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  • Some of the scientists took their wives and children on a tour of the area near ground zero, particularly to view the green glass called "trinitite," which covered the crater floor.

    Project Trinity 1945-1946

  • "trinitite", the glassy green radioactive mineral formed by the blast.

    New Scientist - Online News

  • Plus, we could make a good dent in the federal debt just by selling the trinitite to rich Saudis.

    Matthew Yglesias » Wow

  • Yes, that's trinitite, the mineral created in 1945 in Alamogordo, New Mexico, when scientists exploded the world's first atomic bomb.

    The Whole (New) World in Her Hand

  • I met Ellen and her trinitite at a party graciously thrown for her by publisher Viking/Penguin in New York this past Monday.

    The Whole (New) World in Her Hand

  • We talked about trinitite (which, if you read my earlier post, is the fused sand produced by the test atomic blast as Trinity).

    I love everybody...

  • There are a lot of ways to win at Civilization Revolution that do not involve taking a happy, peaceful city and reducing it to a smoldering gravesite filled with radioactive trinitite.

    Games Give Free Rein to the Douchebag Within

  • This is trinitite: sand from the desert floor melted into glass by the explosion.

    Two Trinities

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